Automatic weighing-machine.



No. 666,746. f #atentan 1an. 29, l196|.

Y. o. FRANK. AUTOMATIC WEIGHIHG yNAGHINE.

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UNITED STATES PATENT l OFFICE.

OTTO FRANK, OF BERLIN, GERMANY.

AUTOMATIC WEIGHING-MACHINE.

SPECIFICATION forming part of Letters Patent N o. 666,748. dated January 29, 1901.

Application iled May 29, 1899.

T0 t/Z whom t may concern.-

Be it known that I, OTTO FRANK, manufacturer, a subject of the Prince Regent of Bavaria, residing at No. 35 Spener street, Berlin, in the Kingdom of Prussia, German Empire, have invented certain new and useful Improvements in Automatic Weighing-Machines, of which the following is a specification.

This invention relates to improvements in weighing-machines adapted to Weigh material contained in packages, bags, or vessels of any description.

In the drawings forming a part of this application, Figure l is a side elevation of my improved machine; and Fig. 2 is a front elevation of same, partly in section.

While I have shown my improved weighing apparatus complete, the object of this application is to cover particularly a pivoted lever which is operated by a rotatable drum and in turn operates, with other parts, a registering mechanism, which forms no part of this invention. With the exception of said lever the machine or apparatus shown is covered by German Letters Patent No. 101,495, of October 30, 1897.

Referring to the drawings, it will be seen that o. represents a scale-beam pivoted on the bearings of, which carries, by means of bars b, the rotatably-mounted partitioned receiving-drum d, and on the opposite end of the beam is supported the poise-bar e. Above the drum d the frame f supports the inlethopper f', to which are hinged the two inletflaps h and c', that swing upon a common axle g. A notched rod 7s is slidingly secured to the inlet-ap h and serves to arrestthe flap in its opened position, as well as to limit the `movement of the scale when the poise-rod moves upward. When the drum is caused to rotate, the levers m and n cause the opening of the inlet-aps h and c' in such a way that one of the pins o o o2, projecting from the drum, strikes the levers at their lower ends, while their 'upper ends, by means of the parts m n', operate the inlet-flaps.

The bow-shaped lever q is fulcrumed at g to the frame of the machine and is furnished with arms q' q2, that alternately lie in the Serial No. 718,740. (No model.)

path of the pins o o/ o2 on the drum, so that said bow is swung outwardly thereby as the drum rotates. s represents a suitable registering device, Which is connected with the bow-lever in any suitable manner and forms no part of this application. The said bowlever is so hung that when it is in its normal position it is vertical and maintains 0r returns to this position by gravity when released from the action of the aforesaid pins, thus giving a reciprocating movement to said bowlcver. Z and Z represent means for regulating the rotating of the drum and form no part of this application.

Pivoted on the end of one of the arms b is a catch w, which engages pins o o' o2 in the side of the drum, thereby preventing the backward turning of the drum while it is being lled. A projection Z3 on the poise-bar e engages the part Z3 of the lever Z when the bar is depressed, and thus moderates the vibration. A hook t may be used to lock the drum in position to be loaded.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. In a weighing-machine of the class described, in combination with a rotatable receiving-drum, and a registering device, of a pivoted bow-lever having portions lying in the path of projections on said drum, whereby the rotation of the drum will operate said bow-lever, and means connecting the latter with said registering device, as set forth.

2. In a Weighing-machine of the class described, the combination of a rotatable receiving-drum, a lever pivoted to the frame of the machine and having inwardly-projecting bent arms lying in the path of projecting pins on said drum, and means connecting said lever with a suitable registering mechanism,

substantially in the manner and for the pur- OTTO FRANK.

Witnesses:

WOLDEMAR HAUPT, l HENRY HASPER. 

